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ZM4746A-GS18

Public Made by Adom

by adom

Vishay Intertech Zener Diodes, DO-213AB. Unpolarised two-terminal part: the datasheet prints no pin numbers, so pins 1 and 2 follow the library convention, KiCad symbol/footprint/3D.

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ZM4746A-GS18

Vishay Intertech · Zener Diodes · DO-213AB

ZM4746A-GS18 from Vishay Intertech, in a DO-213AB. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 K passive Cathode: the banded/marked end per the datasheet; pad 1 of the KiCad diode footprint.
2 A passive Anode.

Key specifications

Parameter Value
Manufacturer Vishay Intertech
Package DO-213AB
Category Diodes
Pins 2

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter Symbol Min Typ Max Unit Conditions Page
Zener voltage tolerance VZ -5 5 % Standard Zener voltage tolerance (± 5 %) per Features 1
Reverse leakage current IR 5 μA at VR = 13.7 V 2
Zener impedance ZZ 20 Ω at IZT1 = 14 mA, f = 1 kHz 2
Zener impedance at knee ZZK 750 Ω at IZT2 = 0.25 mA, f = 1 kHz 2
Surge current IZSM 250 mA width of test pulse 8.3 ms (note 4) 2
Regulator current IZM 50 mA note (2): valid provided that electrodes are kept at ambient temperature 2
Power dissipation Ptot 1000 mW valid provided that electrodes are kept at ambient temperature 1
Junction temperature Tj 175 °C 1
Storage temperature range Tstg -65 175 °C 1
Zener voltage, nominal VZ 18 V at IZT1 = 14 mA 2
Junction to ambient thermal resistance RthJA 170 K/W junction to ambient air; valid provided that electrodes are kept at ambient temperature 1

CAD (KiCad official)

  • Symbol: ZM4746A-GS18
  • Footprint: Diode_SMD:D_MELF
  • 3D model: DO-213AB (KiCad packages3D, STEP)

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: Vishay Intertech datasheet (4 pp, sha256 8b36a9c27239dd75, retrieved 2026-10-15, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins, primary cathode-band convention (convention), consensus off (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF